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Optimal Power Cost Management Using Stored Energy in Data Centers

Since the electricity bill of a data center constitutes a significant portion of its overall operational costs, reducing this has become important. The authors investigate cost reduction opportunities that arise by the use of Uninterrupted Power Supply (UPS) units as energy storage devices. This represents a deviation from the usual use of these devices as mere transitional fail-over mechanisms between utility and captive sources such as diesel generators. They consider the problem of opportunistically using these devices to reduce the time average electric utility bill in a data center.

Provided by: University of Southern California Topic: Data Centers Date Added: Mar 2011 Format: PDF

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